--- ray/src/common/random.h	1992/09/21 12:02:27	2.2
+++ ray/src/common/random.h	1997/12/01 09:55:00	2.5
@@ -1,6 +1,6 @@
-/* Copyright (c) 1992 Regents of the University of California */
+/* Copyright (c) 1997 Silicon Graphics, Inc. */
 
-/* SCCSid "$SunId$ LBL" */
+/* SCCSid "$SunId$ SGI" */
 
 /*
  *  random.h - header file for random(3) and urand() function.
@@ -10,7 +10,7 @@
 
 #ifdef	MSDOS
 
-#define random		rand
+#define random()	((long)rand()<<16^(long)rand()<<6^(long)rand()>>4)
 
 #define frandom()	(rand()*(1./32768.))
 
@@ -32,7 +32,16 @@ extern double  drand48();
 #endif
 #endif
 
+#ifdef  MC
+
+#define  urand(i)	frandom()
+#define  initurand(n)	(n)
+
+#else
+
+extern short	*urperm;
+extern int	urmask, initurand();
+
 #define	 urand(i)	((urperm[(i)&urmask]+frandom())/(urmask+1))
 
-extern short  *urperm;
-extern int  urmask;
+#endif